The Bengal tiger is one of the most majestic animals in the world. Click here to watch a Bengal tiger leap from a boat and swim to shore.

Sea lions can observe and learn from each other’s behavior while effectively communicating through barks and growls, showing ...

But the grieving mother isn’t a person – she's southern resident orca Tahlequah J35, pushing her dead calf through the waters ...

Roses are red, violets are blue, spend Valentine’s Day learning about sharks, and maybe ratfish too! This Valentine’s Day, ...

Learn more about how baleen whales split into two groups — fight or flight — and how these groups determine how loud they sing.

Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...

Expedition Killer Whale" reveals an hour-long lesson where adult orca teach calves how to hunt seals off Antarctica.

Rochelle BakerLocal Journalism Initiative ReporterCanada's National ObserverFor a second time, the world watched as Tahlequah ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

Some baleen whales avoid killer whale attacks by singing songs at deep frequencies that their predators cannot hear.

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers ...